适应性损伤分析方法用于具有盒子截面的钢筋结构的最终承载能力
JingJing Han1,2,3, WeiWei Xie4,5, Wei Zhang6,7
1Key Laboratory of Disaster Prevention and Structural Safety of China Ministry of Education, School of Civil Engineering and Architecture, Guangxi University, Nanning, 530004, China. hanjingjing_stu@163.com.
Scientific reports
|March 16, 2025
概括
本研究引入了对钢结构结构的适应性损伤演变方法,通过分离应力-张力和损伤计算来简化复杂分析. 新方法提高了计算效率,并准确地预测了结构承载能力.
科学领域:
- 结构工程 结构工程
- 计算力学 计算力学 计算力学
- 材料科学 材料科学 材料科学
背景情况:
- 钢结构结构的传统损坏分析由于复杂的有限元网格和合应力-延展-损伤解决,因此在计算上是密集的.
- 现有的方法需要大量的计算资源,阻碍了对结构完整性的有效分析.
研究的目的:
- 开发一种简化且计算效率高的适应性损伤演变方法,用于带有盒子截面的钢结构.
- 消除应力-应变和损伤分析之间的合,减少计算复杂性.
主要方法:
- 定义的元素轴承比率 (EBR) 和基于变形能量的节约而引入的元素损伤因子.
- 为盒子部分组件构建了一个同质的通用收益率函数 (HGYF),以建立适应性损伤因子和标准.
- 采用线性弹性代分析与适应性损伤演变相结合.
主要成果:
- 拟议的损坏标准适应性地确定了部件刚性降解,脱应力-张力和损坏场.
- 该方法显著降低了合计算的难度,并提高了计算效率.
- 使用线性弹性代分析计算的最终承载能力与实验结果有很好的一致性.
结论:
- 适应性损伤演变方法为分析钢结构结构损伤提供了一种高效和准确的方法.
- 这种脱策略简化了复杂的结构损坏分析,使其更容易获得和更快速.
- 该方法准确预测最终承载能力的能力验证了其有效性.
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